Sash-fastener for meeting-rails



(No Model.) v.

P. G. DOLL-IVER.

SASH FASTENER FOR MEETING RAILS.

Patented Apr. 3,1894.

. V UNITED STATES PATENT ()rrrcn.

PILLSBURY C. DOLLIVER, OF AUGUSTA, MAINE.

SASH-FASTEN ER FOR MEETING-RAILS} SPECIFICATION forming part of LettersPatent No. 517,605, dated April 3, 1894- Applieation filed July 2, 1892.Serial No. 438,843. (No model.)

To 00% whom it may concern.-

Be it known that I, PILLSBURY O. DOL-' LIVER, of Augusta, county ofKennebec, and State of Maine, have invented a new and useful AutomaticSash-Lock, of which the following is a specification.

The object of this invention is to provide a lock for sashes constructedin such a manner that it is without springs or gearing, is self closingand self-locking, and at the same time when opened it remains open ofitself, until the sash is raised, when it again works automatically.

The invention consists in the construction and combination of thevarious parts of the sash look as will be hereinafter fully described. I

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts mall the figures.

Figure 1 is a plan view of my sash lock. Fig. 2 is a perspective view ofthe same. Fig. 3 is a side view of the pendulum, or pawl, that hangs inthe frame A, pivoted at I by a bolt through the hole C. Fig. 4 is a sideView of the frame A, in which the pawl B hangs, and in which B operates.Fig. 5 is a side view of the sash look when pawl B is in position tolock the sash. Fig. 6 is a side view of the sash look when pawl B isswung into the frame A to allow the sash to be opened. Fig. 7 is a viewof the frame A as it appears when out from 'a piece of fiat metal.

A represents the frame which'is designed to be fastened to the uppersash, and in which the pawl B is to hang and to operate, and which is tohave at its base, at the sides, ears, through which are holes for theadmission of screws.

L represents the plate that isdesigned to 'be fastened to the lowersash, and against which the pawl B, at H, is to strike.

B represents the pendulum, or pawl (with the projection D on either orboth sides) which is to hang in the frame A, and operates in such amanner, that the sash cannot be raised or lowered until the upper end ofthe pawl is brought forward, as shown in Fig. 6. It remains in thisposition by its weight resting on projection D on the upper front partof the frame A at J. When the pawl B is in the position shown in Fig. 5its back edge touches the frame A at K and is thus prevented fromfalling back too far. By'this construction the pawl B, when 1ts upperend is brought forward, will remain in that position by its weightresting on' the projection D, thus allowing the use of both hands toraise or lower the sash, but when the sash is raised a little, theouter, upper edge of the lower sash touches the pawl at E a nd causes itto fall back into the proper posltion ready to act when the sash isclosed again.

The hole 0, in the pawl B, is larger than the belt I, to allow pawl Btorise a little when the upper 'end is brought forward, so that theprojection D can come up and over the upper point or corner of the frameA.

Hole 0 is made in the'pawl B quite near its front edge, so that thegreater part of the weight is back of the hole 0, thus causing the lowerend of the pawl B to swing forward, whenB is not held up by projectionD. The

lower end of the pawl B is forced into the frameA by the upper, outeredge of the lower sash touching the pawl at G when going downward, butwhen the sash is closed, the lower end of the pawl B swings out and overthe lower sash, so that it cannotbe raised, or the upper sash lowered.If the lower sash is closed and the upper sash has been dropped, whenclosing the upper sash the pawl Bis acted upon the same as when closingthe lower sash. The bottom edge of the pawl B at H is so shaped that themore the pawl swings out the harder it presses against the plate Landtends to tighten the sashes auto matically. The upper front edge of thepawl B at F is so shaped, that, if by any means the lock should be openwhen the sash is about to be closed, the sash will touch the pawl at Fand cause it to fall back into its proper position to look when the sashis closed.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- The combination in an automatic sash lock of theframe A with the point J, the pawl B with the projection D and the hole-0 which is larger than the look I, the bolt I and the plate L,substantially as shown and described.

PILLSBURY C. DOLLIVER.

Witnesses:

ISAAC P. PARK, JAMES A. FAIRBANKS.

IOC

